Heel seat lasting with breast line pincers



April 25, 1967 KAMBORIAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21. 1961 19 Sheets-Sheet 1 319 a 234 2x 0 I76 U 68 5g [NV EN TOR Jacob 5. Kambor/an BY Wfl ATT'Y Apr" 25, 1967 5 KAMBQR|AN Re. 26,197

HEEL SEAT LASIING WITH BREAST LINE FINGERS Original Filed July 21. 1961 19 Sheets-Sheet 2 April 25, 1967 J. 5 KAMBQR|AN Re. 26,197

HEEL SEAT LASTINO WTTH BREAST LINF. PTNCERS Original Filed July 21. 1961 19 Sheets-Sheet r5 April 25 1967 J. 5. KAMBORIAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21, 1961 19 Sheets-Sheet 4 pril 25. 1 J. 5. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE PINUERS l9 Sheets-Sheet 5 vriginal Filed July 21. 1961 HEEL SEAT LASTING WITH BREAST LINE FINGERS 19 SheetsSheet 6 Original Filed July 21, 1961 April 2 1967 J. 5. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE FINGERS 19 Sheets-Sheet 7 Original Filed July 21, 1961 A ril 25, 1967 .1. s. KAMBORIAN 25,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21, 1961 19 Sheets-Sheet 8 April 25. 1967 J 5 KAMBQRlAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Grigina Filed July 21. 1961 19 Sheets-Sheet 9 A ril 25, 1967 J. s. KAMBORIAN 26.197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21, 1961 19 Sheets-Sheet 10 A ril 25. 1 .1. s. KAMBORIAN 26,197

HEEL SEAT LASTING WITH BREAST LINE PINCERS 'Jriginal Filed July 21, 1961 19 Sheets-Sheet 11 f f7 MR VH k y 1% April 1967 J. s. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE FINGERS 19 Sheets-Sheet 15 Original Filed July 21. 1961 Z56 April 25, 1967 J. 5. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21. 1961 19 Sheets-Sheet 1 1 nnu April 25. 1967 J 5 KAMBORIAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 2]., 1961 19 Sheets-Sheet 1L April 25, 1967 J. s. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE PIN CERS 19 Sheets-Sheet 15 Original Filed July 21, 1961 I I I I I I I I I I mwmi Now I 4. Q *8 m April 25, 1967 J. s. KAMBORIAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21. 1961 1.9 Sheets-Sheet 1? A nl 25, 1 J. 5. KAMBORIAN HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 21. 1961 19 Sheets-Sheet 1a FIG-26A FIG-27B April 25, 1967 J 5, KAMBORlAN Re. 26,197

HEEL SEAT LASTING WITH BREAST LINE FINGERS Original Filed July 2.1 1961 19 Sheets-Sheet 19 United States Patent 26,197 HEEL SEAT LASTING WITH BREAST LINE PINCERS Jacob S. Kamborian, 70 Crestwood Road, West Newton, Mass. 02165 Original No. 3,130,429, dated Apr. 28, 1964, Ser. No.

125,691, July 21, 1961. Application for reissue, Apr.

4, 1966, Ser. No. 547,119

26 Claims. (Cl. 12-145) Matter enclosed in heavy brackets appears in the original patent but forms no part of this reissue specification; matter printed in italics indicates the additions made by reissue.

In [copending application Serial No. 107,156 filed May 2, 1961] Patent No. 3,189,924, there is disclosed an apparatus for lasting shoes which carries out the method disclosed in [pending application Serial No. 80,919 filed January 5, 1961] Patent No. 3,144,670.

The method of [application Serial No. 80,919] Patent No. 3,144,670 deals with the counter molding and heel seat lasting of a shoe using thermoplastic counter that is rigid at ambient temperatures, is rendered flaccid when heated above a predetermined temperature, and becomes rigid again when cooled to ambient temperatures. The counter is coated with an adhesive that becomes tacky at the temperature at which the counter becomes flaccid. In carrying out the method, the heated counter is inserted in a counter pocket at the heel of an upper formed by the upper and a liner stitched to the upper. The counter is draped about a last supported bottom up on a last support and having an insole secured to its bottom with the margins of the upper and counter at the heel of the last extending above the insole. The upper is then gripped by pincers at its toe and forepart portions and pulled away from the heel to stretch the upper about the heel of the last and initiate the molding of the counter to the last. The shoe and last are then moved against a hold-down to clamp the shoe and upper between the last support and the hold-down bearing against the insole. The pincers are then moved upwardly to stretch the upper on the last, after which the heel of the upper is clamped against the last two complete the molding of the counter to the shape of the last and hold the heel of the upper stationary on the last. The margins of the upper and counter are then wiped down upon the insole to last the heel seat of the shoe and adhesively bond the upper to the insole through the counter.

The instant invention provides for an improvement in the above described method in gripping the upwardly extending margin at the breastlines by breastline pincers after the toe and forepart pincers have stretched the upper on the last and moving the breastline pincers toward each other to assist in the molding of the upper to the shape of the last and to lay the margin of the upper at the heel before the wipers to ensure that the wipers wipe all of the upper margin at the heel. concomitantly with the movement of the breastline pincers toward each other, the forepart pincers are opened 50 that the inward pull exerted by the breastline pincers does not fight against the outward pull exerted by the forepart pincers.

The apparatus of [application Serial No. 107,156] Patent No. 3,189,924 comprises wiping means movable forwardly in a predetermined plane, heel clamping means located below the wiping means, a shoe support located forwardly of the wiping and clamping means, a hold down located above the shoe support and forwardly of the wiping and clamping means, and toe and forepart pincers located above the shoe support and forwardly of the wiping and clamping means. An automatic control system is provided which comprises means to cause the toe and Re. 26,197 Reissued Apr. 25, 1967 forepart pincers to grip the toe and forepart portions of the upper and exert a forward pull thereon to stretch the upper about the heel of the last, move the shoe support below the hold-down and move it upwardly to cause the insole to bear against the hold-down, actuate the clamping means to clamp the heel of the upper against the last and move the wipers forwardly to wipe the upper margin at the heel down upon the insole.

The apparatus of the instant invention comprises breast line pincers having normally open jaws located above the shoe support intermediate the forepart pincers and the wiping and clamping means. The automatic control has been modified so that after the shoe support has been moved upwardly to cause the insole to bear against the old-down and to cause the breast line portions of the upper to be inserted between the open jaws of the breast line pincers, the breast line pincers are caused to be closed. The breast line pincers are then caused to move toward each other as the heel clamping means is actuate-d to clamp the upper. Concomitantly with the inward movement of the breast line pincers, the forepart pincers are actuated to release the forepart portions of the upper.

In the accompanying drawings:

FIG. 1 is a side elevation view of the machine;

FIG. 2 is a front elevation view of the machine;

FIG. 3 is a side elevation view of the shoe support, and of an upper tensioning mechanism which includes the toe and forepart pincers;

FIG. 4 is a front elevation view ing mechanism;

FIG. 5 is a top plan view of the upper tensioning mechanism and shoe support;

FIG. 6 is a detail of motor control causing the toe and forepart pincers to stretch the upper about the heel of the last;

FIG. 7 is a side elevation view of a mechanism for swinging the shoe support from an initial position remote from the wiping and clamping means to a working position adjacent the wiping and clamping means;

FIG. 8 is a view taken on the line 8-8 of FIG. 7;

FIG. 9 is a side elevation view of a mechanism for moving the wiping and clamping means from an initial out-of-the-way position to a working position;

FIG. 10 is a view taken on the line 10-10 of FIG. 9;

FIG. 11 is a side elevation partly in section of the wiper actuating means and the hold-down actuating means;

FIG. 12 is a section showing the relationship of the hold-down and wipers as they are mounted in the frame of the machine;

FIG. 13 is a top plan view of the heel clamp and the heel clamp actuating means;

FIG. 14 is a view taken along the line 14-14 of FIG. 13;

FIG. 15 is a top plan view of the wipers and wiper actuating means;

FIG. 16 is a side elevation view of the hold-down; FIG. 17 is a view taken along the line 17-17 of P16. 16;

FIG. 18 is a detail of a presser member;

FIG. 19 is a schematic representation of a valve and a pair of fluid motors used in operating the toe and torepart pincers;

FIG. 20 is a plan view of a breast line pincers;

FIG. 21 is a side elevation taken along the line 21-21 of FIG. 20;

FIG. 22 is a schematic representation of the air control system of the machine;

FIG. 23 is a view of the counter inserted in the counter pocket;

FIG. 24A is a plan view of the shoe and last after they of the upper tension- 

